Contact Hertfordshire ECU Remapping

Hertfordshire ECU Remapping brought to you by Stephens Engineering Automatics

The No1 Choice for Engine Tuning and ECU Remaps in Hertfordshire

Other Services include:

Vehicle Servicing & Repairs

Vehicle Diagnostics

Cambelts & Clutches

Vehicle Upgrades

We also offer a full range of mechanical services. Get in touch to enquire about our full range or call us for a quote on all your motor mechanical sport needs.

Whether you are looking for a sports performance remap, diesel engine tuning or dpf removal, our expert ECU remapping specialists use the latest engine chip-tuning diagnostic tools and equipment to ensure each client gets the custom remap they require. We promise to custom tune each and every engine and vow never to offer common & dangerous “one-size-fits-all” ECU Remaps.

OAs main agents for BHP UK all our vehicle software is custom written by their in-house remapping technicians, tailoring each car remap specifically for your vehicle. All chip tuning remaps have been tried and tested using a 2000bhp DynoJet Rolling-Road situated at BHP UK’s technical development centre in Simonstone.

Tried & Tested ECU Remapping & Engine Tuning

My Alfa Romeo 159 immediately felt more lively and definitely more responsive with much more mid-range power. Average mpg used to be 42mpg and is now 51mpg... So much happier with my fuel bills now! Impressive stuff!

Andrew Scholes

I want to say a big thankyou to the remapping team here for their expert Engine Tuning and for ECU Remapping my BMW 520d last week. The only disadvantage is that I'm driving like a teenager again with all the extra bhp and torque! I know I'll see the benefits in fuel economy and increased MPG, when I start driving normally...Thanks again!

Richard Blakeley

Originally met these guys at The Autosport Exhibition @ The NEC. Was thrilled to find out they were quite local to me. Can’t say enough how impressed I am at the success of the remap to my Audi A4 170bhp. The difference is phenomenal… sooooo smooth and the power comes so quick low down.

Bradley Pates

Since you re-mapped my VW Passat it’s just like driving a different car, the power is amazing and the performance as a whole is second to none. Every time I accelerate it's like pressing a warp drive pedal. And I’ve also noticed the MPG has gone up considerably. Great Performance Remapping.

Alan Williams

Mercedes C-Class - DPF Removal + PERFORMANCE Remap - Would recommend your service to anyone, you’ve completely changed the characteristics of the car – it’s faster, smoother and funnily enough, even cheaper on fuel! Will definitely be back in contact when it’s time for a change. Once again, thanks.

Matt Crabtree

Ford Mondeo - Diesel ECU Remapping - This is how my car SHOULD always have been! Great blokes. Punctual and professional, cant ask for any more. Great price too. Not too expensive and you know you’re paying for quality! So pleased, thanks so much!

Josh Cleverley

Browse Our Remap & Engine Tuning Database

Browse our Vehicle Stat database and see the potential upgrades available for your vehicle